Integrating individual device energy usage - no values

Energy
1

I set up the energy card and most of it works quite well. I only have an issue integrating the power usage of my heating pump - which is by far the most consumption I have.

I have set up the following sensors:

- sensor:
      - name: "CHA-07 Energie Dashboard"
        unique_id: cha_07_energy_dashboard
        unit_of_measurement: "kWh"
        device_class: energy
        state_class: total_increasing
        state: "{{ states('sensor.cha_07_energie_kwh') | float(0) }}"

- platform: integration
  source: sensor.heat_generator_1_power_consumption_wp_ehz
  name: "CHA-07 Energie (kWh)"
  unique_id: cha_07_energy_kwh
  unit_prefix: k
  unit_time: h
  round: 3
  method: trapezoidal

  cha_07_energy_daily:
    source: sensor.cha_07_energy_dashboard
    cycle: daily

I can integrate it but it shows no values. What am I doing wrong?

Thanks